shadcn.io is not affiliated with official shadcn/ui
About
Two overlapping shapes are only readable if people know which is which. Use this version whenever a radar has two or more series and no header already names them. With one series, the plain radar needs no legend.
Desktop is filled at 60% and Mobile solid in front, on a polygon grid with spokes. Under the radar, a centered legend shows a small square in each series color with its name.
Installation
Usage
import { ChartRadarLegend } from "@/components/charts/chart-radar-legend";<ChartRadarLegend />Customize
ChartLegendgoes insideChartContainer. Itsabsolute inset-x-0 -bottom-2.5classes lay it over the chart's bottom edge, so the radar keeps its size; without them the container's column gives it a row under the SVG.- Its
keysprop sets the order and the subset; by default it lists every config entry with a color. - The two
radialAreamarks paintvar(--color-desktop)andvar(--color-mobile), the same variables the legend's swatches use. - The tooltip shows both series' values for the month with a line indicator:
tooltipon the container passes{ indicator: "line" }.
FAQ
How is the legend added?
Put ChartLegend inside ChartContainer. It reads chartConfig and lists every entry that has a color, with its swatch and label. Here it's absolute inset-x-0 -bottom-2.5 on a relative container, over the chart's bottom edge as Recharts places it, so the radar keeps its full size.
How do I change the order or show only some series?
ChartLegend takes keys, the config keys to list in their order: ["mobile", "desktop"] swaps them, one key lists a single series.
How do I move the legend above the chart?
Set verticalAlign="top" on ChartLegend; bottom is the default. This legend is positioned absolutely, so also swap -bottom-2.5 for a top offset, or drop the absolute classes and let the container's column give the legend its own row (the radar then shrinks to make room).
API Reference
ChartContainer
<div> data-slot="chart"
configChartConfig
Each series' label, icon and color, read by the tooltip and the legend.
definitionChartDefinition
The chart: defineChart(spec, chartTooltip()), its data, marks, scales and axes, and the tooltip's focus.
ariaLabelstring
The chart's accessible name: the card's title.
ariaDescription?string
The chart's accessible description.
className?string
The container's size: aspect-auto h-[250px] w-full, mx-auto aspect-square max-h-[250px]. It's aspect-video by default.
children?ReactNode
What sits under the chart inside the container: a ChartLegend.
tooltip?ChartTooltipContentProps | false
ChartTooltipContent's props (indicator, hideLabel, formatter…) for the default body, or false for TanStack's own tooltip body.
- Type
ChartTooltipContentProps | false
renderTooltip?(context: ChartTooltipBodyRenderContext) => ReactNode
A whole tooltip body of your own, in place of ChartTooltipContent: it gets the focused points (each with its datum, group and color).
- Type
(context: ChartTooltipBodyRenderContext) => ReactNode
defaultIndex?number
The category whose tooltip shows before any pointer, as Recharts' defaultIndex.
height?number
A fixed height in pixels for the chart, in place of the container's.
aspectRatio?number
A width-to-height ratio for the chart, in place of the container's height.
initialWidth?number
The width the chart renders at before it's measured.
onFocusChange?(point: ChartPoint | null) => void
Called as the focused point changes: a pointer, a key or a tap.
- Type
(point: ChartPoint | null) => void
onFocusGroupChange?(points: readonly ChartPoint[]) => void
Called with every point at the focused category (a stacked or grouped chart's).
- Type
(points: readonly ChartPoint[]) => void
onSelect?(point: ChartPoint | null) => void
Called when a point is clicked or picked with Enter.
- Type
(point: ChartPoint | null) => void
--color-<key>?color
Each config key's color (its theme color in light and dark), set on the container: the marks paint with var(--color-<key>).
ChartTooltipContent
<div>
pointsreadonly ChartPoint[]
The focused points, from the tooltip's context. ChartContainer passes them to its default body; a body of your own passes its context's.
indicator?"dot" | "line" | "dashed"
The indicator's shape beside each row.
- Type
"dot" | "line" | "dashed"- Default
"dot"
hideLabel?boolean
Hides the label above the rows (the focused category).
- Default
false
hideIndicator?boolean
Hides each row's color indicator.
- Default
false
label?string
The label's text in place of the focused category, looked up in config.
labelKey?string
The datum field (or config key) the label is read from, looked up in config.
nameKey?string
The datum field (or config key) each row's series is read from: a pie's browser.
valueKey?string
The datum field each row's value is read from, for points that carry geometry rather than values (a pie's, from pie()).
color?string
One indicator color for every row, in place of each series' own.
labelFormatter?(label: string, points: readonly ChartPoint[]) => string
Formats the label (the config's label or the category), with the rows' points: a date written out, a unit.
- Type
(label: string, points: readonly ChartPoint[]) => string
formatter?(value: number | string, name: string, item: ChartTooltipItem, index: number) => ReactNode
A row's content in place of its indicator, name and value, as shadcn's formatter: a unit, a currency, a total row.
- Type
(value: number | string, name: string, item: ChartTooltipItem, index: number) => ReactNode
className?string
Classes for the tooltip's card.
ChartLegend
<div>
config?ChartConfig
The series to list: the container's config by default.
keys?readonly string[]
The series keys to list, in order: every key with a color by default.
hideIcon?boolean
Hides each series' icon (from config), leaving its color swatch.
- Default
false
verticalAlign?"top" | "bottom"
Above the chart or under it.
- Type
"top" | "bottom"- Default
"bottom"
className?string
Classes for the legend's row.
ChartConfig
label?string
The series' name in the tooltip and the legend.
icon?Component
An icon beside its name in the legend and the tooltip (a lucide-react icon).
color?string
Its color in both themes: a token (var(--chart-1)) or any CSS color.
theme?{ light: string; dark: string }
A color for each theme, in place of color.
Helpers
chartTooltip?(settings?: ChartTooltipSettings) => ChartDefinitionOptions
defineChart's second argument for a chart with a tooltip: what a pointer or a key focuses (group-x, each category's series, by default), the focus ring, and the host ChartContainer draws its body in.
- Type
(settings?: ChartTooltipSettings) => ChartDefinitionOptions
chartTheme?ChartTheme
defineChart's theme in the site's tokens: the text, the grid and the palette (--chart-1 to --chart-5).
chartColors?(config: ChartConfig, keys?: readonly string[]) => { domain: string[]; range: string[] }
defineChart's color: each series key (in config order, or keys') painted var(--color-<key>), for marks with a color channel.
- Type
(config: ChartConfig, keys?: readonly string[]) => { domain: string[]; range: string[] }
chartLinearScale?() => LinearScale
A value axis drawn as Recharts draws its default one: zero in the domain, five nice ticks. Pass it as a factory: y: { scale: chartLinearScale }.
- Type
() => LinearScale
curveNatural?CurveFactory
D3's natural curve, for a smooth line or area: curve: d3Curve(curveNatural).
curveStep?CurveFactory
D3's step curve, for a line or area that holds each value: curve: d3Curve(curveStep).
curveMonotoneX?CurveFactory
D3's monotone curve, smooth without overshooting a point: curve: d3Curve(curveMonotoneX).
curveLinearClosed?CurveFactory
D3's closed linear curve: a radar's polygon (curve: curveLinearClosed on radialLine and radialArea).
useChart?() => { config: ChartConfig }
The config of the ChartContainer around a component of your own (a custom tooltip body or legend).
- Type
() => { config: ChartConfig }
Related
Multiple Radar Chart
Radar chartsTwo series overlaid on the same radar grid.
Radar Chart with Icons
Radar chartsTwo radar series with icons in their legend.
Radar Chart with Lines Only
Radar chartsTwo radar series as outlines only, no fill.
Pie Chart with Legend
Pie chartsA pie with a legend of its slices underneath.
Stacked Bar Chart with Legend
Bar chartsTwo series stacked in each bar, with a legend.
Radar Chart
Radar chartsOne series on a polygon grid, six months around the center.